Use new TanStack RC setup #2690

wobsoriano · 2025-10-09T20:30:07Z

🔎 Previews:

What does this solve?

We've updated our SDK to support TanStack Start RC. The custom server handler sections of our docs are now outdated, as we introduced a clerkMiddleware() in our SDK. See feat(tanstack-react-start): Introduce middleware and support for TanStack Start RC javascript#6859

What changed?

Updates pages where custom server handler (createClerkHandler) is used and replaced with clerkMiddleware() usage.
Updates getAuth(request) to use auth()

Checklist

I have clicked on "Files changed" and performed a thorough self-review
All existing checks pass

vercel · 2025-10-09T20:30:13Z

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wobsoriano · 2025-10-14T16:21:48Z

Marking this as ready for review ahead of our SDK release today.

docs/guides/development/verifying-oauth-access-tokens.tanstack-react-start.mdx

…tanstack-start-rc

SarahSoutoul · 2025-10-14T16:47:12Z

docs review

@wobsoriano Have added some redirects for the old links here: docs review and left a comment.

The rest looks good to me, but wanna test out the new quickstart first.

docs/reference/tanstack-react-start/overview.mdx

docs/getting-started/quickstart.tanstack-react-start.mdx

SarahSoutoul · 2025-10-14T21:23:19Z

@alexisintech have now given this an extensive review, but wanted to get your eyes on it for final approval.

Quickstart PR associated with this is here: clerk/clerk-tanstack-react-start-quickstart#5.

Think we also need a Dashboard PR to update onboarding docs, if I'm not mistaken @wobsoriano. Happy to do it if it's not in the making.

manovotny · 2025-10-14T21:55:28Z

I would prefer @alexisintech gives official approval, but from what I see, this LGTM. 👍

richardvanbergen · 2025-10-15T02:17:57Z

@wobsoriano Thank you very much for your hard work on this. I wasn't sure whether to create an issue or if it's a problem with documentation (my setup) but I thought I should at least tell you before you publish an announcement or something. If you want I can create an issue instead.

After adding the middleware

import { clerkMiddleware } from '@clerk/tanstack-react-start/server';
import { createStart } from '@tanstack/react-start';

export const startInstance = createStart(() => {
  return {
    requestMiddleware: [clerkMiddleware()],
  };
});

I get the following on every request:

TypeError: Cannot read properties of undefined (reading 'get')
    at AuthenticateContext.getCookie (file:///Users/rich/Code/workwings/node_modules/@clerk/backend/dist/chunk-BY3VEEDM.mjs:388:38)
    ... 8 lines matching cause stack trace ...
    at next (/Users/rich/Code/workwings/node_modules/@tanstack/start-server-core/dist/esm/createStartHandler.js:480:16) {
  cause: TypeError: Cannot read properties of undefined (reading 'get')
      at AuthenticateContext.getCookie (file:///Users/rich/Code/workwings/node_modules/@clerk/backend/dist/chunk-BY3VEEDM.mjs:388:38)
      at AuthenticateContext.getSuffixedCookie (file:///Users/rich/Code/workwings/node_modules/@clerk/backend/dist/chunk-BY3VEEDM.mjs:391:17)
      at AuthenticateContext.usesSuffixedCookies (file:///Users/rich/Code/workwings/node_modules/@clerk/backend/dist/chunk-BY3VEEDM.mjs:252:36)
      at AuthenticateContext.getSuffixedOrUnSuffixedCookie (file:///Users/rich/Code/workwings/node_modules/@clerk/backend/dist/chunk-BY3VEEDM.mjs:394:14)
      at AuthenticateContext.initCookieValues (file:///Users/rich/Code/workwings/node_modules/@clerk/backend/dist/chunk-BY3VEEDM.mjs:371:38)
      at new AuthenticateContext (file:///Users/rich/Code/workwings/node_modules/@clerk/backend/dist/chunk-BY3VEEDM.mjs:237:12)
      at createAuthenticateContext (file:///Users/rich/Code/workwings/node_modules/@clerk/backend/dist/chunk-BY3VEEDM.mjs:436:10)
      at authenticateRequest (file:///Users/rich/Code/workwings/node_modules/@clerk/backend/dist/chunk-BY3VEEDM.mjs:4994:31)
      at /Users/rich/Code/workwings/node_modules/@clerk/tanstack-react-start/dist/server/clerkMiddleware.js:16:26
      at next (/Users/rich/Code/workwings/node_modules/@tanstack/start-server-core/dist/esm/createStartHandler.js:480:16),
  status: 500,
  statusText: undefined,
  headers: undefined,
  data: undefined,
  body: undefined,
  unhandled: true
}

This is my current package versions. I've checked the PRs and made sure I have the latest clerk libraries but no success:

{
  "name": "[redacted]",
  "private": true,
  "type": "module",
  "scripts": {
    "dev": "vite dev --port 3000",
    "build": "vite build",
    "start": "node .output/server/index.mjs",
    "serve": "vite preview",
    "test": "vitest run",
    "format": "biome format",
    "lint": "biome lint",
    "check": "biome check",
    "storybook": "storybook dev -p 6006",
    "build-storybook": "storybook build",
    "machine-translate": "inlang machine translate --project project.inlang"
  },
  "dependencies": {
    "@auth/core": "0.37.0",
    "@clerk/backend": "^2.18.0",
    "@clerk/clerk-js": "^5.100.0",
    "@clerk/clerk-react": "^5.52.0",
    "@clerk/tanstack-react-start": "^0.26.0",
    "@convex-dev/auth": "^0.0.90",
    "@convex-dev/react-query": "0.0.0-alpha.11",
    "@faker-js/faker": "^10.0.0",
    "@orpc/client": "^1.7.5",
    "@orpc/json-schema": "^1.7.5",
    "@orpc/openapi": "^1.7.5",
    "@orpc/server": "^1.7.5",
    "@orpc/tanstack-query": "^1.7.5",
    "@orpc/zod": "^1.7.5",
    "@radix-ui/react-accordion": "^1.2.12",
    "@radix-ui/react-label": "^2.1.7",
    "@radix-ui/react-select": "^2.2.6",
    "@radix-ui/react-slider": "^1.3.6",
    "@radix-ui/react-slot": "^1.2.3",
    "@radix-ui/react-switch": "^1.2.6",
    "@storybook/react-vite": "^9.1.9",
    "@t3-oss/env-core": "^0.13.8",
    "@tailwindcss/vite": "^4.0.6",
    "@tanstack/match-sorter-utils": "^8.19.4",
    "@tanstack/react-devtools": "^0.7.0",
    "@tanstack/react-form": "^1.0.0",
    "@tanstack/react-query": "^5.66.5",
    "@tanstack/react-query-devtools": "^5.84.2",
    "@tanstack/react-router": "^1.132.0",
    "@tanstack/react-router-devtools": "^1.132.0",
    "@tanstack/react-router-ssr-query": "^1.131.7",
    "@tanstack/react-router-with-query": "^1.130.17",
    "@tanstack/react-start": "^1.132.0",
    "@tanstack/react-store": "^0.7.0",
    "@tanstack/react-table": "^8.21.2",
    "@tanstack/router-plugin": "^1.132.0",
    "@tanstack/store": "^0.7.0",
    "class-variance-authority": "^0.7.1",
    "clsx": "^2.1.1",
    "convex": "^1.27.3",
    "lucide-react": "^0.544.0",
    "nitro": "npm:nitro-nightly",
    "posthog-js": "^1.273.1",
    "react": "^19.0.0",
    "react-dom": "^19.0.0",
    "storybook": "^9.1.9",
    "tailwind-merge": "^3.0.2",
    "tailwindcss": "^4.0.6",
    "tw-animate-css": "^1.3.6",
    "vite-tsconfig-paths": "^5.1.4",
    "zod": "^4.1.11"
  },
  "devDependencies": {
    "@biomejs/biome": "2.2.4",
    "@inlang/cli": "^3.0.0",
    "@inlang/paraglide-js": "2.4.0",
    "@tanstack/devtools-event-client": "^0.3.2",
    "@testing-library/dom": "^10.4.0",
    "@testing-library/react": "^16.2.0",
    "@types/node": "^22.10.2",
    "@types/react": "^19.0.8",
    "@types/react-dom": "^19.0.3",
    "@vitejs/plugin-react": "^5.0.4",
    "jsdom": "^27.0.0",
    "typescript": "^5.7.2",
    "vite": "^7.1.7",
    "vitest": "^3.0.5",
    "web-vitals": "^5.1.0"
  },
  "trustedDependencies": [
    "@clerk/shared",
    "@tailwindcss/oxide",
    "browser-tabs-lock",
    "core-js"
  ]
}

wobsoriano · 2025-10-15T02:22:30Z

@richardvanbergen there's an upstream issue with a TanStack dependency and the fix is to pin srvx version to 0.8.15. See this integration test fix

richardvanbergen · 2025-10-15T02:37:25Z

@wobsoriano Sorry that didn't work I:

Locked the package versions to the versions here.
Deleted the lock file and node modules.
Re-install from scratch.

I still see the same error.

I'm going to try and see if I can make a minimal reproduction repo. if I can't then I'll just migrate my app over to it. If I can I'll post it to clerk/backend issues.

richardvanbergen · 2025-10-15T03:22:37Z

Nevermind. I couldn't reproduce in another repo. So I just started deleting stuff from my package.json and trying to get it to match the new repo as best I could. Then it suddenly started working, I don't know what caused it. My guess is some pnpm or vite cache nonsense.

Sorry for the extra chatter and congratulations on a newly shipped feature!

SarahSoutoul · 2025-10-15T17:08:40Z

@alexisintech have now given this an extensive review, but wanted to get your eyes on it for final approval.

Quickstart PR associated with this is here: clerk/clerk-tanstack-react-start-quickstart#5.

Think we also need a Dashboard PR to update onboarding docs, if I'm not mistaken @wobsoriano. Happy to do it if it's not in the making.

Here you go: https://github.com/clerk/dashboard/pull/7313.

alexisintech · 2025-10-15T17:54:17Z

@SarahSoutoul @wobsoriano taking a look now

alexisintech

I've posted my review - if you agree with these changes @wobsoriano I can update the quickstart repo to match these changes :)

docs/getting-started/quickstart.tanstack-react-start.mdx

Co-authored-by: Robert Soriano <[email protected]>

SarahSoutoul · 2025-10-16T16:43:13Z

I've posted my review - if you agree with these changes @wobsoriano I can update the quickstart repo to match these changes :)

To both of you @alexisintech @wobsoriano, have updated the Dashboard PR accordingly after the recent changes if you could have another quick link: https://github.com/clerk/dashboard/pull/7313/files. Didn't include the srvx stuff given it's a temporary thing, but doesn't hurt to add it as a callout in the dashboard onboarding too. Let me know thoughts.

alexisintech · 2025-10-16T19:04:56Z

I've posted my review - if you agree with these changes @wobsoriano I can update the quickstart repo to match these changes :)

To both of you @alexisintech @wobsoriano, have updated the Dashboard PR accordingly after the recent changes if you could have another quick link: https://github.com/clerk/dashboard/pull/7313/files. Didn't include the srvx stuff given it's a temporary thing, but doesn't hurt to add it as a callout in the dashboard onboarding too. Let me know thoughts.

I'm going to mark this as blocked until we have rob's responses!

wobsoriano · 2025-10-16T20:04:17Z

@alexisintech @SarahSoutoul tbh I think we can skip the srvx part as we already have plenty of references (discord, github) on why it's not working currently and we can always reference that. I talked to one of the TanStack maintainers and they said they're gonna look into it.

SarahSoutoul · 2025-10-17T18:02:22Z

I think we might be good to go no? @alexisintech @wobsoriano

wobsoriano · 2025-10-17T18:23:04Z

merging it!

Use new TanStack RC setup

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fix links

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chore: remove org sync for now

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Merge branch 'main' into rob/tanstack-start-rc

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SarahSoutoul added 2 commits October 14, 2025 10:44

docs review

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Merge remote-tracking branch 'origin/rob/tanstack-start-rc' into rob/…

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Migrate to TanStack Start RC clerk/clerk-tanstack-react-start-quickstart#5

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Merge branch 'main' into rob/tanstack-start-rc

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chore: remove getAuth use

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more fixes

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add clerkMiddleware to start overview

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Merge branch 'main' into rob/tanstack-start-rc

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Merge branch 'main' into rob/tanstack-start-rc

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Co-authored-by: Robert Soriano <[email protected]>

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remove srvx section

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wobsoriano deleted the rob/tanstack-start-rc branch October 17, 2025 18:23

Use new TanStack RC setup #2690

Use new TanStack RC setup #2690

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